Text in force at CS29-12: from CS29-12, effective 10 Dec 2024.
(a) Maximum power-off (autorotation). The maximum power-off rotor speed must be established so that it does not exceed 95% of the lesser of:
(1) The maximum design rpm determined under CS 29.309(b); and
(2) The maximum rpm shown during the type tests, (b) Minimum power-off. The minimum power-off rotor speed must be established so that it is not less than 105% of the greater of:
(1) The minimum shown during the type tests; and
(2) The minimum determined by design substantiation.
(c) Minimum power-on. The minimum power-on rotor speed must be established so that it is:
(1) Not less than the greater of:
(i) The minimum shown during the type tests; and
(ii) The minimum determined by design substantiation; and
(2) Not more than a value determined under CS 29.33(a)(1) and (c)(1).
ED Decision 2024/009/R · Source